Question : 18 men can complete a work in 50 days. If 25 men are employed, then in how many days the work will be completed?
Option 1: 25 days
Option 2: 48 days
Option 3: 36 days
Option 4: 32 days
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Correct Answer: 36 days
Solution : We know, $M_1D_1= M_2D_2$ Where $M_1$ and $M_2$ are persons and $D1$ and $D_2$ are days. Here, $M_1=18,M_2=25,$ and $D_1=50$ ⇒ $18×50=25×D_2$ ⇒ $D_2=\frac{50×18}{25}$ ⇒ $D_2 = 36$ days Hence, the correct answer is 36 days.
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Question : 12 men can complete a work in 6 days working 4 hours per day. If 4 men work 8 hours per day, then in how many days the same work will be completed?
Question : If 10 men can do work in 10 days, then in how much time will 2 men do the same work?
Question : A work can be completed by 20 men in 50 days. 30 more men join them after 10 days of work. How many days will be saved in the completion of the work?
Question : 8 women can complete a work in 15 days. If 2 women are employed, then in how many days the work will be completed?
Question : P alone can complete a work in 25 days and Q alone can complete the same work in 50 days. If both of them work together, then in 12 days what percent work of the total work will be completed?
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